| 摘要 |
A control method, storage medium and file system for use with a network file system in which a plurality of nodes of computers share a file over a network, each of the nodes storing read data or write data for the file in a buffer, the method including storing, when a file update is made by the node, the updated data in the buffer in the node until consistency about the updated data is needed by a program that runs on the node; making a notification of the file update to the other nodes when consistency about the updated data is needed by the program; checking, when the notification is made, whether or not the data in the buffers in the other nodes corresponds with the data to be updated; and making if the data corresponding with the updated data is found by the checking, the data in the other nodes invalid.
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